Only downside with hetzner storage share (compared to other managed hosting providers) is, that you need to run your own collabora instance on a VPS to use nextcloud office And ffmpeg isn’t available on most managed hostings

The source code for it can be found on https://codeberg.org/wintermute/lemmymap/src/branch/development

But with Wintermute going missing and feddit.de shutting down is has been shut down as well.